But in midautumn, Ishmael son of Nethaniah and grandson of Elishama, who was a member of the royal family, arrived in Mizpah accompanied by ten men. Gedaliah invited them to dinner. While they were eating,
References for Jeremiah 41:1
Ishmael and his ten men suddenly drew their swords and killed Gedaliah, whom the king of Babylon had appointed governor.
Then they went out and slaughtered all the Judean officials and Babylonian soldiers who were with Gedaliah at Mizpah.
References for Jeremiah 41:3
The next day, before anyone had heard about Gedaliah's murder,
eighty men arrived from Shechem, Shiloh, and Samaria. They had come to worship at the Temple of the LORD. They had shaved off their beards, torn their clothes, and cut themselves, and had brought along grain offerings and incense.
Ishmael left Mizpah to meet them, weeping as he went. When he reached them, he said, "Oh, come and see what has happened to Gedaliah!"
But as soon as they were all inside the town, Ishmael and his men killed all but ten of them and threw their bodies into a cistern.
The other ten had talked Ishmael into letting them go by promising to bring him their stores of wheat, barley, oil, and honey that they had hidden away.
The cistern where Ishmael dumped the bodies of the men he murdered was the large one made by King Asa when he fortified Mizpah to protect himself against King Baasha of Israel. Ishmael son of Nethaniah filled it with corpses.